body {
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background-color: #f0f0f0;
  font-family: Arial, sans-serif;
}

#red-packet {
  position: relative;
  width: 300px;
  text-align: center;
}

#cover {
  width: 100%;
  cursor: pointer;
}

#message {
  font-size: 20px;
  color: #ffcc00;
  display: none;
}

#nft-id {
  font-weight: bold;
  color: #ff4444;
}